Congratulations, you have just found a book that begun its journey in the Madrid Town Hall, with the help of Mahou Sin. If you are among the first two people to register this book, both of them will donate 3 euros to an organization called NGO that helps young people find a job in your name. This book is not just a promise of happiness for you but also for others. Please, follow the chain after reading it. Pass the happiness to others.